WiththefastdevelopmentofcomputerandInternettechnologie...
來源:國語幫 5.17K
問題詳情:
With the fast development of computer and Internet technologies, traditional printed books ______ by the growing popularity of online reading of e-books.
A. are challenged B. have challenged
C. are being challenged D. have been challenged
【回答】
C
知識點:現在進行時及其被動式
題型:選擇題